Description
tkmail before 4.0beta9-8.1 allows local users to create or overwrite files as users via a symlink attack on temporary files.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.0 | tkmail | 4.0beta9-8.1 | DSA-172 |
Advisories 1
- DSA-172 tkmail - insecure temporary files Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-172 vendor-advisory
- 5911 vdb-entry
- tkmail-tmp-file-symlink(10307) vdb-entry